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South Korea's Im Dong-hyun collects his arrows during an individual ranking round at the 2012 Summer Olympics, Friday, July 27, 2012, in London. Dong-hyun set a world record in the round with a 699 score.(AP Photo/Marcio Jose Sanchez)

South Korean breaks archery world record

South Korea's Im Dong-hyun broke his own 72-arrow world record in the

archery ranking round for the London Olympics with a score of 699 on

Friday. Im, who suffers from strong myopia, just aimed at a "blob of yellow color" in the center of the target 70 meters away.